NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, all time — NPA 506
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 506-458 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-459 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-460 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-462 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-463 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Millville | — |
| — | 506-465 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | St. Stephen | — |
| — | 506-466 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | St. Stephen | — |
| — | 506-467 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | St. Stephen | — |
| — | 506-468 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Browns Flat | — |
| — | 506-472 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-473 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Grand Falls | — |
| — | 506-474 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-475 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Grand Falls | — |
| — | 506-485 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Springfield | — |
| — | 506-486 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Welsford | — |
| — | 506-488 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Gagetown | — |
| — | 506-522 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Belledune | — |
| — | 506-523 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Richibucto | — |
| — | 506-524 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Richibucto | — |
| — | 506-525 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint-Antoine | — |
| — | 506-529 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | St. Andrews | — |
| — | 506-531 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Shediac | — |
| — | 506-532 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Shediac | — |
| — | 506-533 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Shediac | — |
| — | 506-534 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Petitcodiac | — |
| — | 506-536 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Sackville | — |
| — | 506-538 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Port Elgin | — |
| — | 506-542 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Petit-Rocher | — |
| — | 506-544 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Bathurst | — |
| — | 506-545 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Bathurst | — |
| — | 506-546 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Bathurst | — |
| — | 506-547 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Bathurst | — |
| — | 506-548 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Bathurst | — |
| — | 506-549 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Bathurst | — |
| — | 506-553 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | New Denmark | — |
| — | 506-557 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-558 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-575 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Nackawic | — |
| — | 506-576 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Cocagne | — |
| — | 506-577 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Cap-Pele | — |
| — | 506-592 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-622 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-623 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-624 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-627 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-631 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-632 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-633 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-634 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-635 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.